Help me please!!, Smoking oil horribly, Oil pools in exhasut.

Discuss topics related to the CA18DE and CA18DET series engines.
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KEMP
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ok, so the new turbo is on, perfect condition.my car smokes like a damn frieght train still, even after quite a few miles, and beating it slightly to try any burn out excess oil from bad turbo. the car runs absolutly perfect, anyone could literaly drive the hell out of it, and IF they acted like it wasnt smoking, they would feel an amazing running powerful car. this is where im confused.

there is mounts of oil spitting out, i can wipe my finger in the exhaust and there will be liquid oil in the tip sitting there, my finger will come out wet with oil.

the catch can will get almost NO oil in it, it wont fill up or anything, unlike it used to, it used to fill decently quick if i was beating on it, but now it will not, so to my knowledge, that means the oil/smoke is not coming from excessive crankcase pressure in the form of blow-by, the turbo oil line drain is NOT clogged, and the oil seems to smell of combusted oil, and not from the turbo, but its still liquid at the exhaust tip.

oil level is fine, turbo is fine, and runs strong. i have no idea what it could be, it feels no different in power or drivability from when it was running before it started, its the exact same feeling. i have never been so stumped in my life. i would think it might be getting too much oil pressure to the turbo, but then again, it never smoked for the couple month i had an ebay turbo on, and then it started.

i am still using the ebay exhaust housing, since it fits the turbonetics turbo perfect and was an easier way to put the turbo on, but i dont thin kthat could have anything to do with it.

Please, any help would be amazing.
Modified by KEMP at 8:22 PM 3/30/2009


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ca18detgabby
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sounds like too much oil pressure.

got an oil pressure gauge? maybe one of the oil lines is got a kink in it?

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KEMP
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checked for kinks today, none at all were present.

but im thinking i need an oil restrictor.

its around 35-45psi at idle, and almost 100psi at WOT and redline(8500)

boost_boy
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KEMP wrote:ok, so the new turbo is on, perfect condition.my car smokes like a damn frieght train still, even after quite a few miles, and beating it slightly to try any burn out excess oil from bad turbo. the car runs absolutly perfect, anyone could literaly drive the hell out of it, and IF they acted like it wasnt smoking, they would feel an amazing running powerful car. this is where im confused.

there is mounts of oil spitting out, i can wipe my finger in the exhaust and there will be liquid oil in the tip sitting there, my finger will come out wet with oil.

the catch can will get almost NO oil in it, it wont fill up or anything, unlike it used to, it used to fill decently quick if i was beating on it, but now it will not, so to my knowledge, that means the oil/smoke is not coming from excessive crankcase pressure in the form of blow-by, the turbo oil line drain is NOT clogged, and the oil seems to smell of combusted oil, and not from the turbo, but its still liquid at the exhaust tip.

oil level is fine, turbo is fine, and runs strong. i have no idea what it could be, it feels no different in power or drivability from when it was running before it started, its the exact same feeling. i have never been so stumped in my life. i would think it might be getting too much oil pressure to the turbo, but then again, it never smoked for the couple month i had an ebay turbo on, and then it started.

i am still using the ebay exhaust housing, since it fits the turbonetics turbo perfect and was an easier way to put the turbo on, but i dont thin kthat could have anything to do with it.

Please, any help would be amazing.
Did you ever clean your intercooler? Is oil coming out of yur blow-off valve? Before yu go faulting excessive oiling, consider the possibility that there's leftover oil from your last episode.

Dee

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ca18detgabby
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boost_boy wrote:Did you ever clean your intercooler? Is oil coming out of yur blow-off valve? Before yu go faulting excessive oiling, consider the possibility that there's leftover oil from your last episode.

Dee
maybe you clear that idea up for me.......... if it was excess in the IC piping would that come out as blow by, and/or burn up during combustion...... not pool up in his exhaust?

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KEMP
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true, but i did clean the piping.

i think i am getting to much pressure to the turbo, and it goes past the oil seals, which is why i have small amounts of oil in both ends, only the compresor for sure though, not alot, just a tad, so thats my assumption.

i plan to get a rebuilt kit, rebuild the turbo, then have it balanced and put it back on with an oil restrictor.

is there a possibility my ebay exhaust housing is warped or something where the CHRA meets the housing, an is not sealing all theway? is super tight

boost_boy
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KEMP wrote:true, but i did clean the piping.

i think i am getting to much pressure to the turbo, and it goes past the oil seals, which is why i have small amounts of oil in both ends, only the compresor for sure though, not alot, just a tad, so thats my assumption.

i plan to get a rebuilt kit, rebuild the turbo, then have it balanced and put it back on with an oil restrictor.

is there a possibility my ebay exhaust housing is warped or something where the CHRA meets the housing, an is not sealing all theway? is super tight
You guys have to be doing something wrong because what makes my applications any different from most of yours, yet you guys' turbos are all taking on oil. Let me make this perfectly clear, neither your manifold or your exhaust components are causing your problems . Now that we've gotten that cleared up, let's try and make some sense of your claims. High oil pressure: Oil pressure is high on a cold engine for obvious reasons. That pump has to make sure there's enough pressure and volume to get oil from your sump to your head in the shortest amount of time. The natural characteristics of a good CA18 oil pump will show at least 50-75psi of cold engine oil pressure upon idle and 100+if you're revving the thing; this is normal. If you go revving on it while the pressure is that high, then you're an "Idiot"that like spending money.

I have a brand new turbonetics turbocharger on my CA powered 240sx as well and I too have high oil pressure in the A.M. I also rev my engine (I'm an IDIOT) when it's cold because of the massive injectors I'm using, but I don't have the issues you guys are all claiming you have. Hell, my turbonetics turbocharger doesn't even have the restrictor that everyone says you should have, but again, it's not spewing oil all over the place. To make matters worse, I 2-step my engine at or around 6500rpm, but still no smoking from oil issues.

I also have 2 sentras both with GT35R ballbearing units, again, no oiling issues and they both have massive injectors as well as high cold engine oil pressure, so some revving is needed. So in theory consider this: you guys could just possibly have bad turbochargers?

And some of you claim you need to prime the engine to prime the turbo before actually running the engine? In my experience and per my turbo vendor, this is not necessarily true. These turbochargers or most anyway are pre-lubed and can be activated without massive amounts of oil for a few seconds, seeing that the exhaust temperatures are not that severe during start-up. A poorly built unit will fail almost immediately whereas a well-built unit should not face failure when it gets a little oil when it needs oil to survive anyways. Hope this helps a bit and if not, good luck with your issues because there is no way that high oil pressure is causing failure when your cartridge is a flow-through system. Unless your return line is kinked, rule-out high oil pressure and consider the fact that you just got a bad unit.

Dee

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r34 gtr
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Ive got to rev my engine on startup in the winter to avoid having to constantly re-adjust the amount my TB is cracked so it will idle cold. No problems with the turbo.

When does that GT35R spool on the CA Dee? I'm sure you've mentioned it but I am curious. Sounds like a good mach to me. Mmmmmm GT35R.

boost_boy
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r34 gtr wrote:Ive got to rev my engine on startup in the winter to avoid having to constantly re-adjust the amount my TB is cracked so it will idle cold. No problems with the turbo.

When does that GT35R spool on the CA Dee? I'm sure you've mentioned it but I am curious. Sounds like a good mach to me. Mmmmmm GT35R.
The 35R is on full boost around 5300rpm and starts spooling at or around 3800rpm. A wonderful match for this engine indeed. Dee

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KEMP
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thank you, so i should have the turbo rebuilt and see what happens?

IF this does not fix it, what the hell could it be, i am so very confused, the drain line is not clogged nor kinked, oil pressure is as you said, so that might not be it. but i heard if your using a 4an line for feed, like i am, then you may need a restrictor since most use 3an, but im not sure.

so ill order a rebuild kit, rebuild it myself, then take it to hav it balanced.

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r34 gtr
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Can I recommend a turbo rebuilder to you guys? I keep seeing people have them rebuilt poorly, and the guy I got to rebuild my CA T25 did an incredible job. He also warranties his work for a full year.

http://www.timsturbos.com/

Tim at Tim's turbos is a great guy, and will do you proud. Give him a call.

Not to plug shamelessly, but some of yall's turbo guys really suck.

Logan76
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I would try out a 1/16" restrictor bud.

beans33
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quick question tim. When and where are you getting your car tuned ? I might be interested to do it at the same time .

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KEMP
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r
beans33 wrote:quick question tim. When and where are you getting your car tuned ? I might be interested to do it at the same time .
thread jack you bastard

beans33
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sorry man, you ever fix the problem ?

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r34 gtr
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Do you guys retain the stock 90 degree fitting out of the block? That has a restrictor built into it. Maybe contacting the manufacturer for the specific oiling requirements of the turbo would be a good idea?

Btw beans I emailed you. You have my number, you could just call or some s***.

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KEMP
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r
beans33 wrote:quick question tim. When and where are you getting your car tuned ? I might be interested to do it at the same time .
thread jack you bastard

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KEMP
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turbo rebuilt, perfect, ZERO play.

compression tested with a SH*TTY gauge, showed between 80-84psi per cylinder

leak down test, 60% leak ACROSS the board.

i have came to the conclusion/hope, that its my cometic headgasket, most likely lifted the head, it was reused for its second time so im thinking it was weakened.

for it to be accross the board i would almost guarentee its the head gasket. i believe the cylinder seals on the gasket are smashed down too much for it to be reused since the first torque, this i s why i believe it runs amazing, since the compression is equal, but burns oil, since the oil journals are closer to the cylinder than coolant.

the head will be pulled tomorrow, and order a new cometic, then torque to 100ft-lbs.

if anyone has any insight on this please do speak, thank you.

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ca18detgabby
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glad you found your issue.

zero_gripS13
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take er apart and let us know did u ever retorque ur head studs after 1k mile?

only thing that gets me is ur burning oil not coolant.....lots of oil..

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r34 gtr
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100 ft*lbs is too much. Try in the ballpark of 86.

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KEMP
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do you agree that its the head gasket?

i think thats all it points to.

it will be torqued to 90 ft-lbs, thats what i usually do.

30ft-lbs 50ft-lbs then finally 90ft-lbs starting with the two middle studs.

im going ot pull the head today, and order the gasket this week, since ill be in the outerbanks all next week, so no need to hurry and order it.

ill be torquing with motor oil, which is why im doing 90lbs. and will retorque after 1k miles.

i dont know why its just oil, i think it lifted the inside of the head, or its just too smashed down from previous use, which is why oil and no coolant is burning, thats my current hypothesis.


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